CN112476299A - Bushing pressure head structure and using method thereof - Google Patents
Bushing pressure head structure and using method thereof Download PDFInfo
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- CN112476299A CN112476299A CN202011269148.7A CN202011269148A CN112476299A CN 112476299 A CN112476299 A CN 112476299A CN 202011269148 A CN202011269148 A CN 202011269148A CN 112476299 A CN112476299 A CN 112476299A
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- bushing
- pressure head
- pull rod
- cylinder
- indenter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
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Abstract
The invention discloses a bushing pressure head structure and a using method thereof, wherein the bushing pressure head structure mainly comprises an air cylinder and a pressure head front end structure, a piston pull rod of the air cylinder is sequentially provided with a sleeve, an elastic rubber sleeve and a pressing ring from top to bottom, the pressure head front end structure is provided with a mechanical bulge and a sensor, when the bushing is sleeved on the piston pull rod in use, the air pressure value detected by a pressure detector reaches a set value, the piston pull rod rises, the upper end surface and the lower end surface of the elastic rubber sleeve are extruded by the pressing ring and the sleeve to cause the outer diameter to be enlarged, the bushing is fixed, and then whether the type of the bushing is the same as the required type of the bushing is judged according to the signal of the sensor, and if the type of the bushing is the; therefore, semi-automatic press fitting of the bushing is achieved, namely the bushing is positioned and fixed through the bushing pressure head structure, manual positioning and fixing are avoided, manual operation is reduced, accuracy is improved, the bushing and a steering knuckle are prevented from being crushed, and working efficiency is improved.
Description
Technical Field
The invention relates to the field of automobile assembling equipment, in particular to a bushing pressure head structure and a using method of the bushing pressure head structure.
Background
The pressure equipment of the bush of current car knuckle adopts the mode of unloading on the manual work usually, and bush and knuckle are all by artifical manual handling carrying, location, and the angle of bush is by artifical visual confirmation, causes bush angular deflection easily, if bush angular deflection appears, leads to bush and knuckle to crush easily to the intensity of labour who adopts artifical material loading is big, the problem that work efficiency is low.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a lining pressing head structure and a using method of the lining pressing head structure, and solves the problems of high labor intensity and low working efficiency caused by manual positioning and feeding in the existing lining installation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bushing pressure head structure comprises a cylinder connected to the lower end of a mechanical pressure head, wherein the cylinder comprises a cylinder body, an end cover and a piston pull rod, a pressure head front end structure is fixed to the lower end of the cylinder body, the piston pull rod downwards penetrates through the pressure head front end structure, a pressing ring is fixed to the tail end of the piston pull rod, an elastic rubber sleeve is arranged between the pressing ring and the pressure head front end structure, and the elastic rubber sleeve is sleeved on the piston pull rod; the pressure head front end structure is also connected with a first vent pipe, the first vent pipe is communicated with the lower end surface of the pressure head front end structure, and a pressure detector is connected on the first vent pipe in series; and the cylinder body is connected with a second vent pipe, and the second vent pipe is connected with an electromagnetic control valve.
In the bushing pressure head structure, a sleeve is further sleeved on the piston pull rod, penetrates through the center of the front end structure of the pressure head and is arranged between the cylinder body and the elastic rubber sleeve.
In the bushing pressure head structure, a mechanical bulge is arranged on the inner wall of the pressure head front end structure and is engaged with a groove on the bushing.
In the bushing pressure head structure, a through hole is arranged on the pressure head front end structure, a sensor is fixed on the through hole, and the sensor is matched with the lateral edge on the bushing.
In the bushing pressure head structure, the air cylinder is a single-action air cylinder, the second vent pipe is connected to one end, extending out of the piston pull rod, of the air cylinder, and the interior of the cylinder body is further provided with a return spring which is arranged between the piston pull rod and the end cover.
In the bushing pressure head structure, the upper end face of the end cover is connected with a universal ball head.
The use method of the lining pressing head structure comprises the following steps:
sleeving the bushing on the piston pull rod;
when the pressure value of the pressure detector reaches a set value, the cylinder is controlled to drive the piston pull rod to rise, so that the upper end face and the lower end face of the elastic rubber sleeve are extruded by the compression ring and the sleeve, the outer diameter of the elastic rubber sleeve is enlarged, and the lining is fixed;
the press-fitting device drives the bushing press head structure to descend, so that the bushing is pressed into the matching hole of the steering knuckle; controlling the cylinder to drive the piston pull rod to descend, restoring the original outer diameter of the elastic rubber sleeve, and loosening the bushing;
the press-fitting device drives the bushing pressure head structure to ascend.
In the using method of the bushing pressure head structure, the inner wall of the front end structure of the pressure head is provided with a mechanical bulge, the mechanical bulge is meshed with a groove on the bushing, when the bushing is sleeved on the elastic rubber sleeve, the mechanical bulge is matched with the groove on the bushing, and when the pressure value of the pressure detector reaches a set value, the cylinder is controlled to drive the piston pull rod to ascend.
In the using method of the bushing pressure head structure, a through hole is formed in the front end structure of the pressure head, a sensor is fixed on the through hole and matched with the side edge position on the bushing, after the piston pull rod is driven to ascend by the control cylinder, whether the sensor is provided with a sheltered signal or not is judged, the sheltered signal is compared with a set program corresponding to the bushing, and if the sheltered signal is not matched with the set program, an alarm is given.
In the using method of the bushing pressing head structure, before the step of sleeving the bushing on the piston pull rod is carried out, a program corresponding to the installed bushing is input or selected.
Has the advantages that: through setting up the bush pressure head structure that mainly comprises the cylinder, pressure head front end structure, the clamping ring, sleeve and elasticity gum cover are constituteed, sleeve and elasticity gum cover are on the piston pull rod of cylinder, the clamping ring is connected on the piston pull rod and in the below of elasticity gum cover, and be equipped with mechanical arch and sensor on the pressure head front end structure, be equipped with on the bush with the protruding recess of meshing of machinery and the side arris that is used for sensor discernment bush model, when using, select the procedure that the bush model of installation corresponds at the controller according to actual need. When the bush cover was on the piston pull rod, the atmospheric pressure value that pressure detector detected reached the setting value, and the piston pull rod rises, and the upper and lower terminal surface of elastic rubber sleeve receives clamping ring and telescopic extrusion, leads to the external diameter grow of elastic rubber sleeve, realizes the fixed of bush, and then the signal through the sensor judges whether the bush model is the same with needs, if the same, then carries out the pressure equipment. Therefore, semi-automatic press fitting of the bushing is achieved, namely the bushing is positioned and fixed through the bushing pressure head structure, manual positioning and fixing are avoided, manual operation is reduced, accuracy is improved, the bushing and a steering knuckle are prevented from being crushed, and working efficiency is improved.
Drawings
FIG. 1 is a front view of a bushing indenter structure mated with a bushing.
Figure 2 is a top view of the bushing indenter structure shown in figure 1 mated with a bushing.
Figure 3 is a front view of the bushing indenter configuration.
Figure 4 is a bottom view of the bushing indenter structure shown in figure 3.
Description of the main element symbols: 1-universal ball head, 2-air cylinder, 2.1-end cover, 2.2-reset spring, 2.3-cylinder body, 2.4-piston pull rod, 3-sensor, 4-sleeve, 5-elastic rubber sleeve, 6-press ring, 7-bush, 7.1-groove, 7.2-side edge, 8-pressure head front end structure, 8.1-mechanical bulge, 9-first vent pipe, 10-second vent pipe, 11-pressure detector and 12-vent channel.
Detailed Description
The invention provides a lining pressing head structure and a using method thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
Referring to fig. 1 and 2, fig. 3 and fig. 4, a bushing pressure head structure includes a cylinder 2 connected to a lower end of a mechanical pressure head, the cylinder 2 includes a cylinder body 2.3, an end cover 2.1 and a piston pull rod 2.4, a pressure head front end structure 8 is fixed to a lower end of the cylinder body 2.3, the piston pull rod 2.4 downwardly penetrates through the pressure head front end structure 8, a press ring 6 is fixed to a tail end of the piston pull rod 2.4, an elastic rubber sleeve 5 is arranged between the press ring 6 and the pressure head front end structure 8, and the elastic rubber sleeve 5 is sleeved on the piston pull rod 2.4; the pressure head front end structure 8 is also connected with a first vent pipe 9, the first vent pipe 9 is communicated with the lower end surface of the pressure head front end structure 8, and a pressure detector 11 is connected on the first vent pipe 9 in series; the cylinder body 2.3 is connected with a second vent pipe 10, and the second vent pipe 10 is connected with an electromagnetic control valve (not shown in the figure).
In the above structure, the electromagnetic control valve and the pressure detector 11 are electrically connected to a controller, and the controller is configured to receive a signal from the pressure detector 11 and control the operation of the electromagnetic control valve, and the controller can be fixed to a press-fitting device that drives the mechanical press head to move.
When the air pressure measuring device is used, the first vent pipe 9 flows out from the pressure head front end structure 8, the piston pull rod 2.4 of the air cylinder 2 is in a downward extending state, the bushing 7 is sleeved on the piston pull rod 2.4 and is arranged outside the elastic rubber sleeve 5, namely the elastic rubber sleeve 5 is arranged in the central hole of the bushing 7, so that a gap between the top surface of the bushing 7 and the bottom surface of the pressure head front end structure 8 is reduced, after the pressure detector 11 detects that the air pressure of the first vent pipe 9 is increased and reaches a set value, the controller controls the electromagnetic control valve to switch the air flow direction to drive the piston pull rod 2.4 of the air cylinder 2 to ascend, when the pressure ring 6 on the piston pull rod 2.4 of the air cylinder 2 and below the elastic rubber sleeve 5 ascends along with the piston pull rod 2.4 of the air cylinder 2, the distance between the pressure ring 6 and the pressure head front end structure 8 is reduced to compress the elastic rubber sleeve 5, and the, and then the outer surface of the elastic rubber sleeve 5 extrudes the central hole of the bushing 7, so that the fixation and automatic centering of the bushing 7 are realized, and the automatic centering is that the axis of the bushing 7 is automatically coincided with the axis of the piston pull rod 2.4. The knuckle is then placed directly under the bush 7 and the mechanical ram is driven to move downwards so that the bush 7 is pressed accurately onto the knuckle.
After the bush 7 is pressed into the knuckle, the controller controls the electromagnetic control valve to switch the air flow direction, the piston pull rod 2.4 of the driving cylinder 2 descends, the elastic rubber sleeve 5 is enabled to recover the original state, the bush 7 is loosened, the mechanical pressure head is driven to move upwards, and the pressing-in process of the bush 7 is completed.
Of the above, the pressure detector 11 is preferably a digital pressure switch, and outputs a signal to control the closing of the air flow of the first vent pipe 9 when the pressure reaches a set value, and controls the operation of the solenoid control valve according to the signal.
The bushing pressure head structure in the embodiment is suitable for the press fitting process of the bushing 7 which does not need to distinguish the positive and negative directions and the matching angle when the bushing pressure head structure is installed on a steering knuckle.
In a preferred embodiment, a sleeve 4 is arranged between the front end structure 8 of the pressure head and the elastic rubber sleeve 5, and the sleeve 4 is sleeved on the piston pull rod 2.4. Through the setting of sleeve 4, reduced the length of elasticity gum cover 5 to when using, elasticity gum cover 5 is arranged in 7 centre holes of bush completely, improves the fixed effect of elasticity gum cover 5 to bush 7. In practical application, the sleeve 4 may also pass through the center of the front end structure 8 of the pressure head and be placed between the cylinder body 2.3 and the elastic rubber sleeve 5.
In the above, the elastic rubber sleeve 5 is a rubber sleeve or a silicone sleeve, and may be made of other materials with certain deformability.
Preferably, the cylinder 2 is a single-acting cylinder 2, the second vent pipe 10 is connected to one end, extending out of the piston pull rod 2.4, of the cylinder 2, the inside of the cylinder body 2.3 is further provided with a return spring 2.2, and the return spring 2.2 is arranged between the piston pull rod 2.4 and the end cover 2.1. When the second vent pipe 10 is filled with gas, the gas pushes the piston part of the piston pull rod 2.4 to compress the return spring 2.2, so that the piston pull rod 2.4 rises, and after the direction of the electromagnetic control valve is switched, the second vent pipe 10 exhausts gas, so that the piston pull rod 2.4 extends downwards under the action of the restoring force of the return spring 2.2.
In a preferred embodiment, in practical application, some bushings 7 are fixed in the angle of fitting with the steering knuckle, i.e. during assembly, the bushings 7 need to be rotated to the corresponding angle of fitting with the fitting hole of the steering knuckle, pressed in again and cannot be installed reversely. In order to facilitate the identification of the front and back of the bush 7 and the angle of installation of the bush 7, such a bush 7 will normally have a recess 7.1 formed in it. Therefore, in order to adapt the installation of such a bush 7, on the basis of the above structure, a mechanical projection 8.1 is provided on the inner wall of the indenter front structure 8, which mechanical projection 8.1 engages with a groove 7.1 on the bush 7.
When installing bush 7 in this bush pressure head structure, only after protruding 8.1 of machinery and the recess 7.1 meshing on the bush 7, can make the clearance between 7 top surfaces of bush and the pressure head front end structure 8 diminish, and then just can make pressure detector 11 detect the atmospheric pressure of first breather pipe 9 and reach the pressure value of settlement. Since the groove 7.1 and the mechanical protrusion 8.1 are arranged in a meshed manner, the mechanical protrusion 8.1 can only be meshed with one set installation end by arranging the groove 7.1 at one end of the bush 7 or arranging the groove 7.1 at the other end of the bush 7 in different sizes or shapes, so that the front and the back of the bush 7 can be identified, and reverse installation of the bush can be avoided.
In a preferred embodiment, in practical application, the type of the bush 7 which needs to be fixed at the fitting position with the steering knuckle and cannot be installed reversely is also various, and before installation, the type of the bush 7 needs to be identified and then the bush is installed on the steering knuckle according to the corresponding angle and direction. In order to identify different models, when the bush 7 is designed, the side edge 7.2 is arranged on the side surface of the bush 7 and above the groove 7.1, and the position of the side edge 7.2 is different when the bush 7 is designed, namely the position of the side edge 7.2 is different from that of the groove 7.1 in the top view direction.
In order to adapt to the installation of the bush 7, on the basis of the structure, a through hole is arranged on the front end structure 8 of the pressure head, the sensor 3 is fixed on the through hole, the sensor 3 is electrically connected with a controller, and the position of the sensor 3 is matched with that of the side edge 7.2 on the bush 7.
Wherein, the controller receives that pressure detector 11 detects that the atmospheric pressure of first breather pipe 9 reaches the pressure value that sets for and cylinder 2 drive clamping ring 6 compression elasticity gum cover 5, realizes the fixed back to bush 7, and sensor 3 begins to detect whether have the arris 7.2 to exist on the bush 7. When the system is provided with the bushing 7 which is correct only when the existence of the lateral edge 7.2 is detected, if the sensor 3 cannot detect the existence of the lateral edge 7.2, an alarm is generated; if the presence of the side edge 7.2 is detected, normal production is possible. Specifically, the alarm sounding structure is arranged on the controller and controlled by the controller.
In practical applications, the sensor 3 may be an opposite-type photosensor 3, when the bush 7 has no side edge 7.2, the opposite-type photosensor 3 has opposite-type light passing through the outside of the bush 7, and when the bush 7 having the side edge 7.2 is mounted, the opposite-type photosensor 3 has opposite-type light blocked because the side edge 7.2 protrudes from the surface of the bush 7, and it is identified whether the side edge 7.2 is on the bush 7.
In the embodiment of the application, the side edge 7.2 of the bush 7 is located above the groove 7.1, and the height of the side edge 7.2 is smaller, so that the mechanical protrusion 8.1 is not influenced to be inserted into the groove 7.1, and the position of the mechanical protrusion 8.1 passing through the light of the offset sensor 3 is also not influenced, or an avoiding groove is formed in the mechanical protrusion 8.1, so that the mechanical protrusion 8.1 does not interfere with the sensor 3.
In a preferred embodiment, the through holes are arranged in a plurality of circumferential arrays, and the axes of the pressing head front end structure 8 are selected to be corresponding to the types of the bushings 7, so that the sensor 3 can be mounted on the bushings 7 of various types.
In the above, the sensor 3 may be a sensor 3 for detecting a distance, for example: since the infrared sensor 3 has the projecting side edges 7.2, the position of the side edges 7.2 can be recognized from the distance from the infrared sensor 3 to the surface of the bush 7.
In a preferred embodiment, the upper end of the cylinder 2 is connected with a universal ball head 1, and the universal ball head 1 is connected with a connecting pair on the mechanical pressure head, so that the connection of the lining pressure head structure and the mechanical pressure head is realized. When the bushing 7 is pressed, the universal ball head 1 can slightly swing, and the elastic rubber sleeve 5 can deform, so that when pressure is greater than fixing force of the elastic rubber sleeve 5 to the bushing 7 in the pressing process, the elastic rubber sleeve can slightly move, the axis of the bushing 7 is aligned with the axis of a hole in a steering knuckle, and the bushing 7 or the steering knuckle is prevented from being crushed when a slight error exists in the position of the steering knuckle.
In the above, the controller is a PLC or a single chip microcomputer.
In practical applications, the first vent pipe 9 may be fixed to a lower end of the cylinder body 2.3 of the cylinder 2, and the lower end of the cylinder body 2.3 is provided with a vent passage 12, so that the air flow introduced through the first vent pipe 9 can reach between the top surface of the liner 7 and the bottom surface of the head front-end structure 8.
The use method of the lining pressing head structure comprises the following steps:
the bush 7 is sleeved on the piston pull rod 2.4;
when the pressure value of the pressure detector 11 reaches a set value, the control cylinder 2 drives the piston pull rod 2.4 to ascend, and the upper end face and the lower end face of the elastic rubber sleeve 5 are extruded by the compression ring 6 and the sleeve 4, so that the outer diameter of the elastic rubber sleeve 5 is enlarged, and the lining 7 is fixed;
the press-fitting device drives the bushing press head structure to descend, so that the bushing 7 is pressed into a matching hole of the steering knuckle;
the control cylinder 2 drives the piston pull rod 2.4 to descend, the elastic rubber sleeve 5 recovers the original outer diameter, and the lining 7 is loosened;
the press-fitting device drives the bushing pressure head structure to ascend.
Specifically, the bush 7 can be manually sleeved on the piston pull rod 2.4, and after the bush 7 is fixed on the bush pressure head structure, the press-fitting device drives the mechanical pressure head to drive the bush pressure head structure to descend, so that the bush 7 is pressed into a matching hole of the steering knuckle. After the bush 7 is completely pressed into the knuckle, the controller controls the cylinder 2 to drive the piston pull rod 2.4 to descend, the elastic rubber sleeve 5 recovers the state before deformation, the bush 7 is further loosened, then the press-fitting device drives the mechanical press head to drive the bush press head structure to ascend, and the bush press head structure moves out of the inside of the bush 7.
In a preferred embodiment, the inner wall of the front end structure 8 of the pressure head is provided with a mechanical bulge 8.1, the mechanical bulge 8.1 is engaged with a groove 7.1 on the lining 7, when the lining 7 is sleeved on the elastic rubber sleeve 5, the mechanical bulge 8.1 is matched with the groove 7.1 arranged on the lining 7, and after the pressure value of the pressure detector 11 reaches a set value, the cylinder 2 is controlled to drive the piston pull rod 2.4 to ascend. When the bush 7 is manually sleeved on the elastic rubber sleeve 5, the bush 7 is manually rotated at the same time, so that the mechanical protrusion 8.1 and the groove 7.1 are aligned and inserted into the groove 7.1, and the limitation of the angle of the bush 7 is completed.
Furthermore, a through hole is formed in the pressure head front end structure 8, a sensor 3 is fixed on the through hole, the sensor 3 is matched with the side edge 7.2 on the lining 7 in position, and after the control cylinder 2 drives the piston pull rod 2.4 to ascend, whether a signal blocked by the sensor 3 exists or not is judged, the signal is compared with a set program corresponding to the lining 7, and if the signal does not correspond to the lining 7, an alarm is given.
In the above, before the step of fitting the bush 7 on the piston rod 2.4 is performed, the controller selects a program corresponding to the type of the bush 7 to be fitted, and if the controller does not have the program, the program needs to be input first. Wherein the program includes: TLA type liner 7: the sensor 3 is not shielded from optical signals; TNY type liner 7: the sensor 3 has a shielded optical signal; before the selection of the program corresponding to the installed bushing 7 is performed, the corresponding program is input on the controller.
Since the other types of the bushings 7 cannot be matched with the mechanical protrusions 8.1, the bushings cannot be installed on the bushing pressure head structure, namely, the air pressure value detected by the pressure detector 11 cannot reach the set value, and when the bushings are installed manually, whether the mechanical protrusions 8.1 are engaged with the grooves 7.1 or not can be sensed by workers. The TLA-type bushing 7 is provided with grooves 7.1 engaging with the mechanical projections 8.1, but without lateral edges 7.2, so that it can be mounted on the bushing indenter structure; the TNY type bush 7 is matched with the mechanical bulge 8.1, is provided with a groove 7.1 and is also provided with a side edge 7.2, so that the TLA type bush 7 or the TNY type bush 7 is judged through a signal of the sensor 3, and if the type of the bush 7 corresponding to the selected program is not matched, an alarm is sent to inform a worker.
In the above description, the TNY-type bush 7 may be replaced with another type corresponding to the position of the sensor 3, and the TNY-type bush 7 will be described as an example.
According to the invention, a bushing pressure head structure mainly composed of an air cylinder 2, a pressure head front end structure 8, a pressing ring 6, a sleeve 4 and an elastic rubber sleeve 5 is arranged, the sleeve 4 and the elastic rubber sleeve 5 are sleeved on a piston pull rod 2.4 of the air cylinder 2, the pressing ring 6 is connected on the piston pull rod 2.4 and is arranged below the elastic rubber sleeve 5, a mechanical bulge 8.1 and a sensor 3 are arranged on the pressure head front end structure 8, a groove 7.1 meshed with the mechanical bulge 8.1 and a side edge 7.2 used for identifying the type of the bushing 7 by the sensor 3 are arranged on the bushing 7, and when the bushing pressure head structure is used, a program corresponding to the type of the installed bushing 7 is selected by a controller according to actual requirements. When the bush 7 is sleeved on the piston pull rod 2.4, the air pressure value detected by the pressure detector 11 reaches a set value, the piston pull rod 2.4 rises, the upper end face and the lower end face of the elastic rubber sleeve 5 are extruded by the pressing ring 6 and the sleeve 4, so that the outer diameter of the elastic rubber sleeve 5 is enlarged, the bush 7 is fixed, and then whether the model of the bush 7 is the same as the model of the required bush is judged through signals of the sensor 3, and if the model is the same, press mounting is carried out. Therefore, realize the semi-automatic pressure equipment of bush 7, fix a position, fix bush 7 through bush pressure head structure promptly, avoid needing the manual work to fix a position and fix, reduce manual operation, improve the rate of accuracy, avoid bush 7 and knuckle to be crushed, also improved work efficiency.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (10)
1. A bush pressure head structure is characterized by comprising a cylinder connected to the lower end of a mechanical pressure head, wherein the cylinder comprises a cylinder body, an end cover and a piston pull rod, the lower end of the cylinder body is fixedly provided with a pressure head front end structure, the piston pull rod downwards penetrates through the pressure head front end structure, the tail end of the piston pull rod is fixedly provided with a pressing ring, an elastic rubber sleeve is arranged between the pressing ring and the pressure head front end structure, and the elastic rubber sleeve is sleeved on the piston pull rod; the pressure head front end structure is also connected with a first vent pipe, the first vent pipe is communicated with the lower end surface of the pressure head front end structure, and a pressure detector is connected on the first vent pipe in series; and the cylinder body is connected with a second vent pipe, and the second vent pipe is connected with an electromagnetic control valve.
2. The bushing indenter structure of claim 1, wherein the piston rod further has a sleeve disposed thereon, the sleeve passing through the center of the indenter front structure and being disposed between the cylinder body and the elastomeric sleeve.
3. The liner bushing indenter structure of claim 2, wherein the inner wall of the indenter front structure is provided with a mechanical projection that engages a groove on the liner bushing.
4. The bushing indenter structure of claim 3, wherein the indenter front structure defines a through hole, and a sensor is secured to the through hole and positioned to mate with a lateral edge on the bushing.
5. The bushing indenter structure of claim 4, wherein the cylinder is a single-acting cylinder, the second vent is connected to an end of the cylinder extending beyond the piston rod, and the cylinder body further comprises a return spring disposed therein, the return spring being disposed between the piston rod and the end cap.
6. The bushing indenter structure of claim 5, wherein a gimbaled ball is attached to the end cap upper end surface.
7. A method of using the bushing indenter structure of claim 2, comprising the steps of:
sleeving the bushing on the piston pull rod;
when the pressure value of the pressure detector reaches a set value, the cylinder is controlled to drive the piston pull rod to rise, so that the upper end face and the lower end face of the elastic rubber sleeve are extruded by the compression ring and the sleeve, the outer diameter of the elastic rubber sleeve is enlarged, and the lining is fixed;
the press-fitting device drives the bushing press head structure to descend, so that the bushing is pressed into the matching hole of the steering knuckle;
controlling the cylinder to drive the piston pull rod to descend, restoring the original outer diameter of the elastic rubber sleeve, and loosening the bushing;
the press-fitting device drives the bushing pressure head structure to ascend.
8. The method for using the bushing indenter structure of claim 7, wherein the inner wall of the indenter front structure is provided with a mechanical protrusion, the mechanical protrusion is engaged with a groove on the bushing, the mechanical protrusion is engaged with the groove on the bushing when the bushing is sleeved on the elastic rubber sleeve, and the cylinder is controlled to drive the piston rod to ascend after the pressure value of the pressure detector reaches a set value.
9. The use method of the bushing pressure head structure according to claim 8, wherein a through hole is formed in the front end structure of the pressure head, a sensor is fixed on the through hole, the sensor is matched with the lateral edge of the bushing in position, after the piston pull rod is driven to ascend by the control cylinder, whether the sensor is provided with a shielded signal is judged, the shielded signal is compared with a set program corresponding to the bushing, and if the shielded signal is not provided, an alarm is given.
10. The method of using a bushing indenter structure of claim 9, wherein a program corresponding to the installed bushing is entered or selected prior to performing the step of placing the bushing on the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269148.7A CN112476299B (en) | 2020-11-13 | 2020-11-13 | Bushing pressure head structure and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269148.7A CN112476299B (en) | 2020-11-13 | 2020-11-13 | Bushing pressure head structure and using method thereof |
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| CN112476299A true CN112476299A (en) | 2021-03-12 |
| CN112476299B CN112476299B (en) | 2022-04-29 |
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Cited By (1)
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| CN112476299B (en) | 2022-04-29 |
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